21 Century is dominated by information technology. Exploration, achievement and success of an individual are almost impossible without physical involvement of techniques and technologies. People are predominated by scientific developments and inventions. The lifestyle has been changed since the exploration and invention of dreamy, dazzling, lucrative, challenging and virtual realistic digital world. The man can’t think and survive by the isolation of such needful resources. By nature man loves freedom. The expression of freedom depends on the nature and lifestyle of person as well as his mentality. The mental influences of an individual have been completely bounded by his family values, social norms and religious and cultural ethics. Whatsoever, all human have similarity on humanity, way of survival for existence and thinking the VIRTUAL world, the sweet dream. People live differently, they think and act differently, believe on different religions, adopt various cultures, speak many languages, have different social and political values as well as diversity of their socio-economic/political-religious reality. Similarity of dream and dreaming is common on all human. We say, we have developed mind, we can think differently than other animals and definitely have high rank of virtual thinking. This virtual thinking is literally symbolized as dream. Sigmund

Freud defined this uncommon condition of mentality as “A dream is a disguised fulfillment of a repressed wish”. The interpretation of dreams has as its object the removal of the disguise to which the dreamer’s thoughts have been subjected. It is, moreover, a highly valuable aid to psycho-analytic technique, for it constitutes the most convenient method of obtaining insight into unconscious psychical life.

Wikipedia says “A dream is a succession of thoughts, images, sounds or emotions which the mind experiences during sleep”.

Dreams have been described physiologically as a response to neural processes during sleep, psychologically as reflections of the subconscious, and spiritually as messages from gods, the deceased, predictions of the future or from the Soul, for symbology is the language of the Soul. (Source : http://en.wikipedia.org/wiki/Dream)

The motive power for the formation of dreams is not provided by the latent dream-thoughts or day’s residues, but by an unconscious impulse, repressed during the day, with which the day’s residues have been able to establish contact and which contrives to make a wish-fulfilment for itself out of the material of the latent thoughts. Thus every dream is on the one hand the fulfilment of a wish on the part of the unconscious and on the other hand (in so far as it succeeds in guarding the state of sleep against being disturbed) the fulfilment of the normal wish to sleep which set the sleep going. If we disregard the unconscious contribution to the formation of the dream and limit the dream to its latent thoughts, it can represent anything with which waking life has been concerned – a reflection, a warning, an intention, a preparation for the immediate future or, once again, the satisfaction of an unfulfilled wish. Since dreams are not pathological phenomena, the fact shows that the mental mechanisms which produce the symptoms of illness are equally present in normal mental life, that the same uniform law embraces both the normal and the abnormal and that the findings of research into neurotics or psychotics cannot be without significance for our understanding of the healthy mind. (Source : http://dreaminterpretation.freudfile.org/freud_about_dreams.html)

Concerning the psychological part of dream, dream is the mental relaxation during sleep. It also helps to fresh the retired mind. Dreams often help to balance the mental balance during sleep where the active part of mind tries to awaken on critical situations which are neutralized by unconscious part of mind. How actually dream occurs? During sleep the eyes are closed, so that the brain to some degree becomes isolated from the outside world. Moreover all signals from the senses (except olfaction) must pass through the thalamus before they reach the brain cortex, and during sleep thalamic activity is suppressed. This means that the brain mainly works with signals from itself. A well-known phenomenon in dynamical physical systems where the level of input and output from the system is low is that oscillation makes spontaneous resonance patterns to occur. Hence, dreams may be the simple consequence of neural oscillation. (Source : http://en.wikipedia.org/wiki/Dream)

Finally, dream is the reflection of the day to day activities in relation to the real world. It is also the expression of the feelings of the persons which is neglected, obstructed and regulated by the socio-cultural factors, economic-political conditions. Dream is also the virtual existence of the willing of the person which remain dominated by the reality of the real world. It is also the assumption of the future what the person likes to be. Sometimes, dream may also reflect the hidden images and reality which the person have not experienced on his life but may be transferred to him during the genetic transfer. Imagine, you haven’t seen gigantic flying dragon on reality and not even seen any images or explanation by anybody, then also you could get dream of dragon. Similarly it sometimes reflect our imagination. We haven’t seen any ghost in our life but we have imagined its image on our mind and can see that dream during our sleep. Isn’t it amazing virtually?